790000019 has 2 divisors, whose sum is σ = 790000020. Its totient is φ = 790000018.

The previous prime is 789999989. The next prime is 790000027. The reversal of 790000019 is 910000097.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-790000019 is a prime.

It is a super-2 number, since 2×790000019² = 1248200060040000722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (790000219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395000009 + 395000010.

It is an arithmetic number, because the mean of its divisors is an integer number (395000010).

Almost surely, 2^790000019 is an apocalyptic number.

790000019 is a deficient number, since it is larger than the sum of its proper divisors (1).

790000019 is an equidigital number, since it uses as much as digits as its factorization.

790000019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 790000019 is about 28106.9389831052. The cubic root of 790000019 is about 924.4335539487.

The spelling of 790000019 in words is "seven hundred ninety million, nineteen", and thus it is an aban number.